/* flex布局 */
	.u-f,.u-f-a,.u-f-a-j{
		display: flex;
	}
	.u-f-a,.u-f-a-j{
		align-items: center;
	}
	.u-f-a-j{
		justify-content: center;
	}
	.u-jsb{
		justify-content: space-between;
	}